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91f4debf5e
This patch adds a MFD driver for the JZ4740 ADC unit. The driver is used to demultiplex IRQs and synchronize access to shared registers between the battery, hwmon and (future) touchscreen driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
33 lines
995 B
C
33 lines
995 B
C
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#ifndef __LINUX_JZ4740_ADC
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#define __LINUX_JZ4740_ADC
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#include <linux/device.h>
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/*
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* jz4740_adc_set_config - Configure a JZ4740 adc device
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* @dev: Pointer to a jz4740-adc device
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* @mask: Mask for the config value to be set
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* @val: Value to be set
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*
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* This function can be used by the JZ4740 ADC mfd cells to configure their
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* options in the shared config register.
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*/
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int jz4740_adc_set_config(struct device *dev, uint32_t mask, uint32_t val);
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#define JZ_ADC_CONFIG_SPZZ BIT(31)
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#define JZ_ADC_CONFIG_EX_IN BIT(30)
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#define JZ_ADC_CONFIG_DNUM_MASK (0x7 << 16)
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#define JZ_ADC_CONFIG_DMA_ENABLE BIT(15)
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#define JZ_ADC_CONFIG_XYZ_MASK (0x2 << 13)
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#define JZ_ADC_CONFIG_SAMPLE_NUM_MASK (0x7 << 10)
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#define JZ_ADC_CONFIG_CLKDIV_MASK (0xf << 5)
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#define JZ_ADC_CONFIG_BAT_MB BIT(4)
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#define JZ_ADC_CONFIG_DNUM(dnum) ((dnum) << 16)
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#define JZ_ADC_CONFIG_XYZ_OFFSET(dnum) ((xyz) << 13)
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#define JZ_ADC_CONFIG_SAMPLE_NUM(x) ((x) << 10)
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#define JZ_ADC_CONFIG_CLKDIV(div) ((div) << 5)
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#endif
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